WD 8TB My Cloud EX4100 Expert Series 4-Bay 3.5" NAS


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My Cloud EX4 Model EX4100

Manufacturer Part#  WDBWZE0080KBK-NESN

UPC Code: 718037833613

Provantage Code:  WNDG2YE

Condition:  Factory New

  • Product Type: NAS Storage System
  • Number of Total Expansion Bays: 4
  • Product Model: EX4100
  • Ethernet Technology: Gigabit Ethernet
  • Product Family: My Cloud EX4

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StorageNetwork StorageNAS Servers


WD WDBWZE0080KBK-NESN Specifications

    8TB My Cloud EX4100 Expert Series 4-Bay 3.5" NAS


    Rear View
    Save all your valuable photos, videos, music and files on this ready-to-go, high-performance NAS solution for secure access to them anytime, from anywhere. Protect your content with multiple backup options, customize your NAS with a full suite of apps and enjoy peace of mind knowing that we've put our best in it, so you can put your best on it.

    Powered by a strong Marvell ARMADA 388 1.6 GHz dual-core processor, My Cloud EX4100 gives you ultra-fast transfer speeds of 116 MB/s upload and 116 MB/s download to keep up with your high-performance needs. Now you can upload more content simultaneously, stream your HD media more smoothly, and enjoy your creative life with ease.


    Right View

    Centralized storage with anytime, anywhere access
    Store and organize your photos, videos, music and files in one safe place. Access and share them anytime, from anywhere.

    Powerful Marvell® ARMADA™ 388 1.6 GHz dual-core processor and 2 GB DDR3 memory gives you ultra-fast transfer speeds of 115 MB/s upload and 107 MB/s download for high-performance media streaming and file transfers.

    Media streaming
    With the built-in Twonky DLNA-certified media server, you can seamlessly stream all your HD content to media players, Smart TVs, gaming consoles and other DLNA-certified devices.

    Comprehensive data protection

    Backup that's right for you
    Keep your irreplaceable photos, videos and files safe with multiple, automatic backup options for all the computers on your network. For PC users, WD SmartWare™ Pro offers options for how, when and where your content gets backed up. For Mac users, utilize all the features of Apple Time Machine to protect your content. You can also automatically "back up your backup" to another offsite My Cloud Expert Series device or to a supported cloud service, including Dropbox, ElephantDrive and Amazon S3.

    Multiple RAID options
    Armed with multiple RAID options, you have the power to customize the system with the configuration that works best for you. Choose RAID 0 for enhanced system performance; RAID 1 for mirrored data protection; RAID 5 for data protection and best capacity; or RAID 10 for fast performance and ultimate data reliability. Other options include JBOD and spanning.

    RAID Roaming allows you to keep your RAID array intact when you move drives from one My Cloud EX4100 device to another. RAID Migration lets you change your RAID configuration and expand storage without losing content.

    Advanced data security
    256 AES volume encryption provides additional protection for your valuable photos, videos, music and files.

    Recycle bin
    With this optional feature, deleted files are not erased completely from the NAS, but moved to a special folder and can be retrieved, adding a second level of defense against accidental data deletion.

    Easy to set up and manage
    My Cloud EX4100 comes preconfigured for easy setup and system management. The intuitive dashboard guides you through the process of setting up users and shares, customizing system features and monitoring your storage. And with a toolless and trayless drive bay design, drive installation and hot swap is effortless.

    Featuring WD Red™ NAS drives with NASware™ technology
    My Cloud Expert Series pre-configured NAS come populated with WD Red NAS hard drives. Ultra-reliable and purposely built for NAS systems, WD Red drives improve performance and thrive in 24x7 environments.

    WD's exclusive NASware™ technology further optimizes WD Red for the NAS environment. From vibration compensation, optimized power usage and protecting your content in the event of a power loss or disruption, the firmware is designed to give you improved reliability and system performance.

    Enhanced media streaming and network redundancy
    Dual Gigabit Ethernet ports for link aggregation enhances network performance providing the best possible HD media streaming experience. It also provides for network redundancy should one network connections fail.

    Power redundancy
    Dual power ports offer the option of adding a second external power supply that will take over should the first power supply fail.


    iSCSI  –  FTP  –  WEBDAV  –  SSH  –  IPv4  –  IPv6  –  SNMP  –  UPnP

Package Contents

    • My Cloud Expert Series 4-Bay Pre-configured NAS with Dual-core Processor
    • Ethernet Cable
    • Power Supply and Cable
    • Quick Install Guide


General Information
Product Name8TB My Cloud EX4100 Expert Series 4-Bay 3.5" NAS
Manufacturer Part NumberWDBWZE0080KBK-NESN
Product LineMy Cloud EX4
Product ModelEX4100
Packaged Quantity1
Product TypeNAS Storage System
Number of USB 3.0 Ports2
Network (RJ-45)Yes
Controller TypeSerial ATA/600
RAID SupportedYes
RAID Levels0, 1, 5, 10, JBOD
I/O Expansions
Number of Total Expansion Bays4
Number of 3.5" Bays2
Standard Memory2 GB
Memory TechnologyDDR3 SDRAM
Network & Communication
Ethernet TechnologyGigabit Ethernet
Number of Hard Drives Supported4
Number of Hard Drives Installed2
Total Hard Drive Capacity Installed8 TB
Processor & Chipset
Processor ManufacturerMarvell
Processor TypeARM
Processor Model388
Processor CoreDual-core (2 Core)
Processor Speed1.60 GHz
Operating SystemMy Cloud OS
Physical Characteristics
Form FactorDesktop
Limited Warranty3 Year
Environmentally FriendlyYes
Environmental CertificationRoHS
Other Information
Product FamilyMy Cloud EX4
Hard Drive InterfaceSerial ATA/600
Hard Drive Configuration2 x 4 TB
Input Voltage120 V AC

230 V AC

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WD My Cloud EX4 Model EX4100 WDBWZE0080KBK-NESN